A random sample is obtained from a population with a mean of = 70. A treatment
Question:
a. Assuming that the sample consists of n = 25 scores, compute r2 and the estimated Cohen's d to measure the size of treatment effect.
b. Assuming that the sample consists of n = 16 scores, compute r2 and the estimated Cohen's d to measure the size of treatment effect.
c. Comparing your answers from parts a and b, how does the number of scores in the sample influence the measures of effect size?
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Step by Step Answer:
a With n 25 the estimated standard error is 4 and t 84 2 r ...View the full answer
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Related Book For 
Statistics For The Behavioral Sciences
ISBN: 9781111830991
9th Edition
Authors: Frederick J Gravetter, Larry B. Wallnau
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